The Black Citadel

You find the young scientist cowering under his desk. He begs you not to hurt him so instead you gag him and fasten his arms and legs into the shackles of one of the racks. You search the room and find a *diamond key, marked with miniature diamonds in the desk drawer before walking out and leaving him there.

Erase the password "corpse" (if you have it).
Receive the password "shackle".